公开(公告)号：GB2432751B

公开(公告)日：2007-11-14

申请号：GB0524240

申请日：2005-11-28

Applicant: MOTOROLA INC

Inventor： WHINNETT NICK W ,  PADFIELD DAVID C

IPC: H04L1/00 ,  H04L1/18 ,  H04L12/56 ,  H04W28/04

Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource consumption and reduced delay.

公开(公告)号：GB2432751A

公开(公告)日：2007-05-30

申请号：GB0524240

申请日：2005-11-28

Applicant: MOTOROLA INC

Inventor： WHINNETT NICK W ,  PADFIELD DAVID C

IPC: H04L1/00 ,  H04L1/18 ,  H04L12/56 ,  H04W28/04

Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource consumption and reduced delay.

公开(公告)号：WO2008057658A2

公开(公告)日：2008-05-15

申请号：PCT/US2007078823

申请日：2007-09-19

Applicant: MOTOROLA INC ,  PADFIELD DAVID C ,  FOSTER GERARD T ,  LOPES LUIS

Inventor： PADFIELD DAVID C ,  FOSTER GERARD T ,  LOPES LUIS

IPC: H04W16/32 ,  H04W36/04 ,  H04W72/04

CPC classification number: H04W28/16 ,  H04W16/32 ,  H04W36/0083 ,  H04W36/0088 ,  H04W36/04

Abstract: A cellular communication system comprises a plurality of macrocells underlayed by a plurality of underlay cells. A scrambling code unit (113) comprises a subset processor (201) which divides a set of scrambling codes assigned to the underlay cells into distinct subsets. A scramble code group processor (203) assigns a scrambling code group comprising a plurality of scrambling codes to underlay cells within a region. Each group is a unique group within the region and comprises one scrambling code from each of the subsets. A base station (109) for each of the underlay cells is arranged to transmit a pilot signal on each scrambling code of the group assigned to the underlay cell. Measurements by a remote station (111) may detect specific scrambling codes within each subset thereby allowing a detection of an underlay cell while using a reduced number of scrambling codes. Furthermore, a reduced neighbour list may be maintained.

Abstract translation: 一种蜂窝通信系统包括由多个底层小区覆盖的多个宏小区。 扰码单元（113）包括子分组处理器（201），其将分配给底层单元的一组扰码分成不同的子集。 扰码组处理器（203）将包括多个扰码的扰码组分配给区域内的下位单元。 每个组是该区域内的唯一组，并且包括来自每个子集的一个扰码。 每个底层单元的基站（109）布置成在分配给底层单元的组的每个扰码上发送导频信号。 远程站（111）的测量可以检测每个子集内的特定扰码，从而允许在使用减少数量的扰码的同时检测底层小区。 此外，可以维护减少的邻居列表。

公开(公告)号：WO2007064483A3

公开(公告)日：2007-11-29

申请号：PCT/US2006044430

申请日：2006-11-15

Applicant: MOTOROLA INC ,  WHINNETT NICHOLAS W ,  PADFIELD DAVID C

Inventor： WHINNETT NICHOLAS W ,  PADFIELD DAVID C

IPC: H04B17/00 ,  H04W28/04

CPC classification number: H04L1/1812 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0019 ,  H04L1/0026 ,  H04L1/1825 ,  H04L1/203

Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource

Abstract translation: 基站（103）通过蜂窝通信系统的空中接口的通信信道对第一用户单元（101）进行通信的混合重传方案。 基站（103）包括重发参数控制器（209），该重传参数控制器（209）响应于重传方案的操作点，来设置诸如发射功率或纠错方案的传输参数以用于通信的传输。 CQI处理器（203）确定通信信道的信道质量指示，并且变化处理器（205）确定信道质量指示的变化的变化度量。 变化措施可以例如是变化率。 操作点控制器（207）响应于变化度量来设定工作点。 本发明可以允许改进初始传输的传输参数设置，从而提供更高的吞吐量，减少的资源